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2003
2003
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Nowadays, a lot of research is devoted to realize all-optical telecommunication/information systems. To design all-optical devices, it is very important to understand the physical phenomena appearing in the structure. This thesis involves mathematical (analytical/numerical) modelling of the light propagation in a non-uniform Kerr medium. ... read more |
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Interview with Alexander Brinkman My research has been on Josephson junctions. A Jospehson junction consists of two superconductors that are weakly coupled, for example by separating the electrodes by a small insulating layer. Electrons can still tunnel through that layer. In my research I used junctions with two of those barriers (thinner than 1 nm) to seperate a thin (5 nm) metal from the superconducting electrodes. ... read more |
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Interview with Arnout van den Bos Basically my thesis is about the invention of a new sensor for a Magnetic Force Microscope (MFM). |
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Monolayers are molecules that spontaneously organize themselves on a substrate. The aim of the thesis was to study the reactivity. Molecules react in a different way; depending on whether they are in a solution or on a surface. Reactivity in a solution is for instance much quicker than on a surface, which may take hours and sometimes even days. ... read more |
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Interview with Douwe-Wiebe van der Meer I have been investigating the influence of ir-regularities in the carbon chain of polypropylene on the crystallization, morphology and mechanical properties of the material. Therefore I have been looking at samples with different chain structures and the processes that lead to these structures. ... read more |
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The aim of my project was to bring together two fields of research. These fields are “near-field optical microscopy” and “photonic crystals”. With a near-filed optical microscope the behaviour of light can be studied directly in a structure itself, which means we can look inside one-dimensional, two- and three-dimensional photonic crystals and investigate the propagation of light. ... read more |
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I worked in close collaboration with Philips. Philips has developed a design method to make asynchronous digital circuits. |
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I have worked in the group of semiconductor components, mostly in the labs of MESA+: the clean room and testing room. I deposited thin films for thin film transistors, which are the transistors used in laptops and flat panel displays. My purpose was to... ... read more |
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During his PhD Guy Brammertz worked in the Research and Scientific Support Department of the European Space Agency (ESA) on a contractual basis, being employed by Aurora Technology. His work at ESA and his PhD research for the larger part coincided. ESA has a formal contract with Twente University for theoretical collaboration and supervision. ... read more |
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I started food chemistry in Münster. A major part of these studies is based on analytical chemistry with a close relationship to practical applications. One main field of interest are the constituents of nutrients: the ones that should be there and those that should definitely not be there, like pesticides. ... read more |
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Interview with Heiko van der Linden It is a new principle for a bio pump really. My professor was involved in analyses of blood samples on the body itself using biosensors. A chip with a minute little pump sucks a bit of blood along sensors, measuring for instance blood sugar. We made an inventory of the existing systems, which all had specific setbacks that were mostly dealing with size. ... read more |
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Interview with Jessica Kerckhoffs I have been working on the synthesizing of receptors for specific bonding to for example a medicine. These receptors are all made of 9 building blocks that are linked by Hydrogen bonds and can have different sidechains. ... read more |
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I tested the integrated circuit by applying the special test input signals to the circuit under test and comparing the output signals to the expected signals. If they match, that means that the circuit under test is good; if it doesn’t there are some defects or faults. ... read more |
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My thesis is about the fabrication and characterization of photonic crystals. Photonic crystals are structured materials on a nanometer scale with unusual optical qualities. It is built in layers, each layer having its own refractive index which results in the colour effect you see on CD’s or in opals for instance. ... read more |
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The Centre Européen de Physique Nucléaire (CERN) is building the Large Hadron Collider (LHC) with a total length of 27 kms. It is to accelerate two proton beams in opposite directions to an unprecedented energy of 7 TeV. ... read more |
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Interview with Markus Haverkam CERN (www.cern.ch) in Geneva are constructing a new particle accelerator, the Large Hadron Collider (LHC). The accelerator will be built with superconducting accelerator magnets. During the injection of elementary particles into the machine, the interaction between current distributions in the magnets and the magnetisation of the superconducting material results... ... read more |
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Well, I started working in research 23 years ago, at what is now called KPN Research. It is a bit difficult to tell the history of more than 20 years of work in 5 minutes, but I will try. I have been working on glass fibre and integrated optical circuits. ... read more |
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The research I have been conducting has been about light emitting anti-fuse diodes. It was quite difficult in the beginning because the investigations about silicon light emitters were rather exploratory but the assignment was more applied oriented. It was a bit of a problem to join those two very different parts of the work. ... read more |
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I have been working on fluid (mainly salt solutions) transport through inorganic membranes. In our research group, inorganic materials science, people know a lot about making membranes that function very well, and after that they perform measurements on them. But how these membranes work is something a little more difficult. I worked in a bit different way. ... read more |
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Interview with Tommaso Auletta I am in an organic chemistry group involved in nanotechnology, exploiting the so-called bottom up approach, alternative and complementary to the top down one currently employed in nanofabrication. The exchange of knowledge with physicists and engineers within our research institute, the MESA+, was one of the most stimulating aspects. ... read more |
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I have been working on thin film of p- and n-type superconducting materials with an infinite layer (IL) structure. Starting from a base structure I was also able to artificially build different compounds. The focus was on material preparation and characterization, with possible application to heterostructures and Josephson junctions. Some of the work was entirely new. ... read more |
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The main topic in my research is nanolithography. Nanolithography is a lithographic technique to create lines or features with nanometer dimensions. To achieve this goal, we use an atomic force microscope (AFM) as the lithographic tool. ... read more |